:root {
  color-scheme: light dark;
  --bg: #f7f7f2;
  --fg: #171717;
  --muted: #555;
  --rule: #b8b8ad;
  --link: #0645ad;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10100f;
    --fg: #ecece7;
    --muted: #abab9f;
    --rule: #55554c;
    --link: #8ab4f8;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 16px;
  line-height: 1.6;
}

main {
  width: min(72ch, calc(100% - 32px));
  margin: 40px auto;
}

h1,
h2 {
  font-size: 1rem;
  line-height: 1.4;
  margin: 0;
  font-weight: 700;
}

h1 {
  margin: 0 0 32px;
}

h2 {
  margin-top: 28px;
  text-transform: uppercase;
}

p {
  margin: 8px 0 0 4ch;
}

dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 24px;
  margin: 8px 0 0 4ch;
}

dt {
  font-weight: 700;
}

dd {
  margin: 0;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

footer {
  border-top: 1px solid var(--rule);
  color: var(--muted);
  margin-top: 40px;
  padding-top: 4px;
  font-size: 0.875rem;
}

@media (max-width: 480px) {
  main {
    width: min(100% - 24px, 72ch);
    margin-block: 24px;
  }

  dl {
    grid-template-columns: 1fr;
  }

  p,
  dl {
    margin-left: 0;
  }
}